LCD Type MCU
Special Purpose Data Memory
This area of Data Memory is where registers, necessary for the correct operation of the
microcontroller, are stored. Most of the registers are both readable and writable but some are pro-
tected and are read-only, the details of which are located under the relevant Special Function Reg-
ister section. Note that for locations that are unused, any read instruction to these addresses will
return the value
²00H².
The following diagram shows a detailed Special Purpose Data Memory Organization Map of the
LCD Type microcontrollers:
H T 4 9 R 3 0 A -1
H T 4 9 C 3 0 -1
H T 4 9 C 3 0 L
IA R 0
M P 0
IA R 1
M P 1
B P
A C C
P C L
T B L P
T B L H
R T C C
S T A T U S
IN T C 0
H
T M R
T M R C
H
H
H
H
H
H
H
H
H
H
H
H
H
H T 4 9 R 5 0 A -1
H T 4 9 C 5 0 -1
H T 4 9 C 5 0 L
IA R 0
M P 0
IA R 1
M P 1
B P
A C C
P C L
T B L P
T B L H
R T C C
S T A T U S
IN T C 0
T M R 0
T M R 0 C
T M R 1
T M R 1 C
P A
P B
P C
H T 4 9 R 7 0
H T 4 9 C 7
H T 4 9 C 7
IA R 0
M P 0
IA R 1
M P 1
B P
A C C
P C L
T B L P
T B L H
R T C C
S T A T U
IN T C 0
T M
T M
T M
T M
T M
R 0
R 0 C
R 1 H
R 1 L
R 1 C
P A
P B
P C
A -1
0 -1
0 L
0 0
0 1
0 2
0 3
0 4
0 5
0 6
0 7
0 8
0 9
0 A
0 B
0 C
0 D
0 E
0 F
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 A
1 B
1 C
1 D
1 E
1 F
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
2 A
2 B
2 C
2 D
S
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H T 4 9 R U 8 0
H T 4 9 C U 8 0
IA R 0
M P 0
IA R 1
M P 1
B P
A C C
P C L
T B L P
T B L H
R T C C
S T A T U S
IN T C 0
T M R
T M R
T M R
T M R
T M R
P A
P B
P C
P D
0
0 C
0 0
0 1
0 2
0 3
0 4
0 5
0 6
0 7
0 8
0 9
0 A
0 B
0 C
0 D
0 E
0 F
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 A
1 B
1 C
1 D
1 E
1 F
H
H
H
H
H
H
H
H
H
H
H
H
P A
P B
1 H
1 L
1 C
H
H
H
H
H
H
H
H
H
H
H
H
IN T C 1
IN T C 1
IN T C 1
: U n u s e d , re
a d a s "0 0 "
H
H
H
H
H
H
IN T C 1
T B H P
T M R 2 H
T M R 2 L
T M R 2 C
M F IC
H
H
H
H
H
H
H
H
U S R
U C R 1
U C R 2
T X R /R X R
B R G
3 F H
36
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